Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition, delivering studio-smooth compression and added sustain for guitar or bass. Featuring four easy controls—Sustain, Level, Attack, and Clipping—this compact pedal lets you dial in everything from subtle leveling to punchy, country-style snap. Rugged stompbox design with standard 1/4" input/output and 9V DC power for reliable, pedalboard-friendly performance and quiet operation.